Copy over pep508-rs crate (#31)

This PR copies over the `pep440-rs` crate at commit
`82aa5d4dcbe676b121dc931b0afa09a82de8e3d7` with no modifications.

It won't pass CI, but modifications will intentionally be confined to
later PRs.
This commit is contained in:
Charlie Marsh 2023-10-06 20:12:19 -04:00 committed by GitHub
parent f03398bee3
commit 4fcdb3c045
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GPG key ID: 4AEE18F83AFDEB23
15 changed files with 5263 additions and 0 deletions

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@ -4,6 +4,10 @@
Utilities for interacting with Python version numbers and specifiers.
## [pep508-rs](./pep508-rs)
Utilities for interacting with [PEP 508](https://peps.python.org/pep-0508/) dependency specifiers.
## [puffin-cli](./puffin-cli)
Command-line interface for the Puffin package manager.

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name: Release
on:
push:
tags:
- v*
jobs:
crates-io:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- uses: dtolnay/rust-toolchain@stable
- name: Push to crates.io
env:
CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
run: cargo publish
macos:
runs-on: macos-latest
steps:
- uses: actions/checkout@v3
- uses: actions/setup-python@v4
with:
python-version: 3.9
architecture: x64
- uses: dtolnay/rust-toolchain@stable
- name: Build wheels - x86_64
uses: PyO3/maturin-action@v1
with:
target: x86_64
args: --release --strip --out dist --sdist
env:
RUSTFLAGS: "-C link-arg=-undefined -C link-arg=dynamic_lookup"
- name: Build wheels - universal2
uses: PyO3/maturin-action@v1
with:
args: --release --strip --target --target universal2-apple-darwin --out dist
env:
RUSTFLAGS: "-C link-arg=-undefined -C link-arg=dynamic_lookup"
- name: Upload wheels
uses: actions/upload-artifact@v3
with:
name: wheels
path: dist
windows:
runs-on: windows-latest
steps:
- uses: actions/checkout@v3
- uses: actions/setup-python@v4
with:
python-version: 3.9
- uses: dtolnay/rust-toolchain@stable
- name: Build wheels
uses: PyO3/maturin-action@v1
with:
args: --release --strip --out dist
- name: Upload wheels
uses: actions/upload-artifact@v3
with:
name: wheels
path: dist
linux:
runs-on: ubuntu-latest
strategy:
matrix:
target: [ x86_64 ]
steps:
- uses: actions/checkout@v3
- uses: actions/setup-python@v4
with:
python-version: 3.9
architecture: x64
- name: Build wheels
uses: PyO3/maturin-action@v1
with:
target: ${{ matrix.target }}
args: --release --strip --out dist
- name: Upload wheels
uses: actions/upload-artifact@v3
with:
name: wheels
path: dist
linux-cross:
runs-on: ubuntu-latest
strategy:
matrix:
target: [ aarch64, armv7, s390x, ppc64le, ppc64 ]
steps:
- uses: actions/checkout@v3
- uses: actions/setup-python@v4
with:
python-version: 3.9
- name: Build wheels
uses: PyO3/maturin-action@v1
with:
rust-toolchain: nightly
target: ${{ matrix.target }}
args: --release --strip --out dist
- name: Upload wheels
uses: actions/upload-artifact@v3
with:
name: wheels
path: dist
musllinux:
runs-on: ubuntu-latest
strategy:
matrix:
target:
- x86_64-unknown-linux-musl
- i686-unknown-linux-musl
steps:
- uses: actions/checkout@v3
- uses: actions/setup-python@v4
with:
python-version: 3.9
architecture: x64
- name: Build wheels
uses: PyO3/maturin-action@v1
with:
target: ${{ matrix.target }}
manylinux: musllinux_1_2
args: --release --strip --out dist
- name: Upload wheels
uses: actions/upload-artifact@v3
with:
name: wheels
path: dist
musllinux-cross:
runs-on: ubuntu-latest
strategy:
matrix:
platform:
- target: aarch64-unknown-linux-musl
arch: aarch64
- target: armv7-unknown-linux-musleabihf
arch: armv7
steps:
- uses: actions/checkout@v3
- uses: actions/setup-python@v4
with:
python-version: 3.9
- name: Build wheels
uses: PyO3/maturin-action@v1
with:
rust-toolchain: nightly
target: ${{ matrix.platform.target }}
manylinux: musllinux_1_2
args: --release --strip --out dist
- name: Upload wheels
uses: actions/upload-artifact@v3
with:
name: wheels
path: dist
release:
name: Release
runs-on: ubuntu-latest
needs: [ macos, windows, linux, linux-cross, musllinux, musllinux-cross ]
environment: release
permissions:
id-token: write
steps:
- uses: actions/download-artifact@v3
with:
name: wheels
- name: Publish to PyPI
uses: PyO3/maturin-action@v1
with:
command: upload
args: --skip-existing *

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name: test
on: [ push, pull_request ]
env:
CARGO_TERM_COLOR: always
jobs:
test:
strategy:
matrix:
os: [ ubuntu-latest, windows-latest, macos-latest ]
runs-on: ${{ matrix.os }}
steps:
- uses: actions/checkout@v3
- run: rustup toolchain install stable --profile minimal
- uses: Swatinem/rust-cache@v2
- name: Run tests
run: cargo test
lint:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- uses: dtolnay/rust-toolchain@stable
with:
components: clippy, rustfmt
- uses: Swatinem/rust-cache@v2
- name: Ruff
run: pipx run ruff check --format github .
- name: black
run: pipx run black --check .
- name: Rustfmt
run: cargo fmt --all -- --check
- name: Clippy (pure rust)
run: cargo clippy --tests -- -D warnings
- name: Clippy (pyo3)
run: cargo clippy --tests --all-features -- -D warnings

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crates/pep508-rs/.gitignore vendored Normal file
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.ipynb_checkpoints
.venv
/pypi_analysis/pipy_requires_dist.ndjson
/pypi_analysis/pypi_all.ndjson
__pycache__
target

655
crates/pep508-rs/Cargo.lock generated Normal file
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[package]
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version = "0.2.3"
description = "A library for python dependency specifiers, better known as PEP 508"
edition = "2021"
include = ["/src", "Changelog.md", "License-Apache", "License-BSD", "Readme.md", "pyproject.toml"]
# Same license as pypa/packaging where the tests are from
license = "Apache-2.0 OR BSD-2-Clause"
readme = "Readme.md"
repository = "https://github.com/konstin/pep508_rs"
[dependencies]
anyhow = { version = "1.0.75", optional = true }
once_cell = "1.18.0"
pep440_rs = "0.3.11"
pyo3 = { version = "0.19.2", optional = true, features = ["abi3", "extension-module"] }
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log = "0.4.20"
testing_logger = "0.1.1"
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[features]
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serde = ["dep:serde", "pep440_rs/serde"]
modern = ["serde", "toml", "anyhow"]
default = []
[lib]
name = "pep508_rs"
crate-type = ["cdylib", "rlib"]
[profile.release]
debug = true
[profile.maturin]
inherits = "release"
strip = true

View file

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Apache License
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END OF TERMS AND CONDITIONS

View file

@ -0,0 +1,22 @@
Copyright (c) 2023 konstin
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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@ -0,0 +1,68 @@
# Dependency specifiers (PEP 508) in Rust
[![Crates.io](https://img.shields.io/crates/v/pep508_rs.svg?logo=rust&style=flat-square)](https://crates.io/crates/pep508_rs)
[![PyPI](https://img.shields.io/pypi/v/pep508_rs.svg?logo=python&style=flat-square)](https://pypi.org/project/pep508_rs)
A library for python [dependency specifiers](https://packaging.python.org/en/latest/specifications/dependency-specifiers/), better known as [PEP 508](https://peps.python.org/pep-0508/).
## Usage
**In Rust**
```rust
use std::str::FromStr;
use pep508_rs::Requirement;
let marker = r#"requests [security,tests] >= 2.8.1, == 2.8.* ; python_version > "3.8""#;
let dependency_specification = Requirement::from_str(marker).unwrap();
assert_eq!(dependency_specification.name, "requests");
assert_eq!(dependency_specification.extras, Some(vec!["security".to_string(), "tests".to_string()]));
```
**In Python**
```python
from pep508_rs import Requirement
requests = Requirement(
'requests [security,tests] >= 2.8.1, == 2.8.* ; python_version > "3.8"'
)
assert requests.name == "requests"
assert requests.extras == ["security", "tests"]
assert [str(i) for i in requests.version_or_url] == [">= 2.8.1", "== 2.8.*"]
```
Python bindings are built with [maturin](https://github.com/PyO3/maturin), but you can also use the normal `pip install .`
`Version` and `VersionSpecifier` from [pep440_rs](https://github.com/konstin/pep440-rs) are reexported to avoid type mismatches.
## Markers
Markers allow you to install dependencies only in specific environments (python version, operating system, architecture, etc.) or when a specific feature is activated. E.g. you can say `importlib-metadata ; python_version < "3.8"` or `itsdangerous (>=1.1.0) ; extra == 'security'`. Unfortunately, the marker grammar has some oversights (e.g. <https://github.com/pypa/packaging.python.org/pull/1181>) and the design of comparisons (PEP 440 comparisons with lexicographic fallback) leads to confusing outcomes. This implementation tries to carefully validate everything and emit warnings whenever bogus comparisons with unintended semantics are made.
In python, warnings are by default sent to the normal python logging infrastructure:
```python
from pep508_rs import Requirement, MarkerEnvironment
env = MarkerEnvironment.current()
assert not Requirement("numpy; extra == 'science'").evaluate_markers(env, [])
assert Requirement("numpy; extra == 'science'").evaluate_markers(env, ["science"])
assert not Requirement(
"numpy; extra == 'science' and extra == 'arrays'"
).evaluate_markers(env, ["science"])
assert Requirement(
"numpy; extra == 'science' or extra == 'arrays'"
).evaluate_markers(env, ["science"])
```
```python
from pep508_rs import Requirement, MarkerEnvironment
env = MarkerEnvironment.current()
Requirement("numpy; python_version >= '3.9.'").evaluate_markers(env, [])
# This will log:
# "Expected PEP 440 version to compare with python_version, found '3.9.', "
# "evaluating to false: Version `3.9.` doesn't match PEP 440 rules"
```

580
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name = "pytest"
version = "7.3.1"
description = "pytest: simple powerful testing with Python"
optional = false
python-versions = ">=3.7"
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colorama = {version = "*", markers = "sys_platform == \"win32\""}
exceptiongroup = {version = ">=1.0.0rc8", markers = "python_version < \"3.11\""}
importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
iniconfig = "*"
packaging = "*"
pluggy = ">=0.12,<2.0"
tomli = {version = ">=1.0.0", markers = "python_version < \"3.11\""}
[package.extras]
testing = ["argcomplete", "attrs (>=19.2.0)", "hypothesis (>=3.56)", "mock", "nose", "pygments (>=2.7.2)", "requests", "xmlschema"]
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name = "ruff"
version = "0.0.270"
description = "An extremely fast Python linter, written in Rust."
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python-versions = ">=3.7"
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test = ["argcomplete (>=2.0)", "pre-commit", "pytest", "pytest-mock"]
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name = "typed-ast"
version = "1.5.4"
description = "a fork of Python 2 and 3 ast modules with type comment support"
optional = false
python-versions = ">=3.6"
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content-hash = "f64653737d40fcf3c7b9f9fea186e98322fea9e7ee1889b8f8ee181570b26e17"

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@ -0,0 +1,32 @@
[project]
name = "pep508_rs"
version = "0.2.2"
description = "A library for python dependency specifiers, better known as PEP 508"
readme = "Readme.md"
[tool.poetry]
name = "pep508_rs"
version = "0.1.1"
description = ""
authors = ["konstin <konstin@mailbox.org>"]
readme = "Readme.md"
[tool.poetry.dependencies]
python = ">=3.7"
[tool.poetry.group.dev.dependencies]
black = { extras = ["jupyter"], version = "^23.1.0" }
maturin = "^1.0.0"
pytest = "^7.2.0"
ruff = "^0.0.270"
[tool.maturin]
features = ["pyo3"]
[tool.pytest.ini_options]
minversion = "7.2.0"
addopts = "--tb=short"
[build-system]
requires = ["maturin>=1.0,<2.0"]
build-backend = "maturin"

1420
crates/pep508-rs/src/lib.rs Normal file

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@ -0,0 +1,362 @@
//! WIP Draft for a poetry/cargo like, modern dependency specification
//!
//! This still needs
//! * Better VersionSpecifier (e.g. allowing `^1.19`) and it's sentry integration
//! * PEP 440/PEP 508 translation
//! * a json schema
#![cfg(feature = "modern")]
use crate::MarkerValue::QuotedString;
use crate::{MarkerExpression, MarkerOperator, MarkerTree, MarkerValue, Requirement, VersionOrUrl};
use anyhow::{bail, format_err, Context};
use once_cell::sync::Lazy;
use pep440_rs::{Operator, Pep440Error, Version, VersionSpecifier, VersionSpecifiers};
use regex::Regex;
use serde::{de, Deserialize, Deserializer, Serialize};
use std::collections::HashMap;
use std::str::FromStr;
use url::Url;
/// Shared fields for version/git/file/path/url dependencies (`optional`, `extras`, `markers`)
#[derive(Eq, PartialEq, Debug, Clone, Deserialize, Serialize)]
pub struct RequirementModernCommon {
/// Whether this is an optional dependency. This is inverted from PEP 508 extras where the
/// requirements has the extras attached, as here the extras has a table where each extra
/// says which optional dependencies it activates
#[serde(default)]
pub optional: bool,
/// The list of extras <https://packaging.python.org/en/latest/tutorials/installing-packages/#installing-extras>
pub extras: Option<Vec<String>>,
/// The list of markers <https://peps.python.org/pep-0508/#environment-markers>.
/// Note that this will not accept extras.
///
/// TODO: Deserialize into `MarkerTree` that does not accept the extras key
pub markers: Option<String>,
}
/// Instead of only PEP 440 specifier, you can also set a single version (exact) or TODO use
/// the semver caret
#[derive(Eq, PartialEq, Debug, Clone, Serialize)]
pub enum VersionSpecifierModern {
/// e.g. `4.12.1-beta.1`
Version(Version),
/// e.g. `== 4.12.1-beta.1` or `>=3.8,<4.0`
VersionSpecifier(VersionSpecifiers),
}
impl VersionSpecifierModern {
/// `4.12.1-beta.1` -> `== 4.12.1-beta.1`
/// `== 4.12.1-beta.1` -> `== 4.12.1-beta.1`
/// `>=3.8,<4.0` -> `>=3.8,<4.0`
/// TODO: `^1.19` -> `>=1.19,<2.0`
pub fn to_pep508_specifier(&self) -> VersionSpecifiers {
match self {
// unwrapping is safe here because we're using Operator::Equal
VersionSpecifierModern::Version(version) => {
[VersionSpecifier::new(Operator::Equal, version.clone(), false).unwrap()]
.into_iter()
.collect()
}
VersionSpecifierModern::VersionSpecifier(version_specifiers) => {
version_specifiers.clone()
}
}
}
}
impl FromStr for VersionSpecifierModern {
/// TODO: Modern needs it's own error type
type Err = Pep440Error;
/// dispatching between just a version and a version specifier set
fn from_str(s: &str) -> Result<Self, Self::Err> {
// If it starts with
if s.trim_start().starts_with(|x: char| x.is_ascii_digit()) {
Ok(Self::Version(Version::from_str(s).map_err(|err| {
// TODO: Fix this in pep440_rs
Pep440Error {
message: err,
line: s.to_string(),
start: 0,
width: 1,
}
})?))
} else if s.starts_with('^') {
todo!("TODO caret operator is not supported yet");
} else {
Ok(Self::VersionSpecifier(VersionSpecifiers::from_str(s)?))
}
}
}
/// https://github.com/serde-rs/serde/issues/908#issuecomment-298027413
impl<'de> Deserialize<'de> for VersionSpecifierModern {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: Deserializer<'de>,
{
let s = String::deserialize(deserializer)?;
FromStr::from_str(&s).map_err(de::Error::custom)
}
}
/// WIP Draft for a poetry/cargo like, modern dependency specification
#[derive(Eq, PartialEq, Debug, Clone, Deserialize, Serialize)]
#[serde(untagged)]
pub enum RequirementModern {
/// e.g. `numpy = "1.24.1"`
Dependency(VersionSpecifierModern),
/// e.g. `numpy = { version = "1.24.1" }` or `django-anymail = { version = "1.24.1", extras = ["sendgrid"], optional = true }`
LongDependency {
/// e.g. `1.2.3.beta1`
version: VersionSpecifierModern,
#[serde(flatten)]
#[allow(missing_docs)]
common: RequirementModernCommon,
},
/// e.g. `tqdm = { git = "https://github.com/tqdm/tqdm", rev = "0bb91857eca0d4aea08f66cf1c8949abe0cd6b7a" }`
GitDependency {
/// URL of the git repository e.g. `https://github.com/tqdm/tqdm`
git: Url,
/// The git branch to use
branch: Option<String>,
/// The git revision to use. Can be the short revision (`0bb9185`) or the long revision
/// (`0bb91857eca0d4aea08f66cf1c8949abe0cd6b7a`)
rev: Option<String>,
#[serde(flatten)]
#[allow(missing_docs)]
common: RequirementModernCommon,
},
/// e.g. `tqdm = { file = "tqdm-4.65.0-py3-none-any.whl" }`
FileDependency {
/// Path to a source distribution (e.g. `tqdm-4.65.0.tar.gz`) or wheel (e.g. `tqdm-4.65.0-py3-none-any.whl`)
file: String,
#[serde(flatten)]
#[allow(missing_docs)]
common: RequirementModernCommon,
},
/// Path to a directory with source distributions and/or wheels e.g.
/// `scilib_core = { path = "build_wheels/scilib_core/" }`.
///
/// Use this option if you e.g. have multiple platform platform dependent wheels or want to
/// have a fallback to a source distribution for you wheel.
PathDependency {
/// e.g. `dist/`, `target/wheels` or `vendored`
path: String,
#[serde(flatten)]
#[allow(missing_docs)]
common: RequirementModernCommon,
},
/// e.g. `jax = { url = "https://storage.googleapis.com/jax-releases/cuda112/jaxlib-0.1.64+cuda112-cp39-none-manylinux2010_x86_64.whl" }`
UrlDependency {
/// URL to a source distribution or wheel. The file available there must be named
/// appropriately for a source distribution or a wheel.
url: Url,
#[serde(flatten)]
#[allow(missing_docs)]
common: RequirementModernCommon,
},
}
/// Adopted from the grammar at <https://peps.python.org/pep-0508/#extras>
static EXTRA_REGEX: Lazy<Regex> =
Lazy::new(|| Regex::new(r"^[a-zA-Z0-9]([-_.]*[a-zA-Z0-9])*$").unwrap());
impl RequirementModern {
/// Check the things that serde doesn't check, namely that extra names are valid
pub fn check(&self) -> anyhow::Result<()> {
match self {
Self::LongDependency { common, .. }
| Self::GitDependency { common, .. }
| Self::FileDependency { common, .. }
| Self::PathDependency { common, .. }
| Self::UrlDependency { common, .. } => {
if let Some(extras) = &common.extras {
for extra in extras {
if !EXTRA_REGEX.is_match(extra) {
bail!("Not a valid extra name: '{}'", extra)
}
}
}
}
_ => {}
}
Ok(())
}
/// WIP Converts the modern format to PEP 508
pub fn to_pep508(
&self,
name: &str,
extras: &HashMap<String, Vec<String>>,
) -> Result<Requirement, anyhow::Error> {
let default = RequirementModernCommon {
optional: false,
extras: None,
markers: None,
};
let common = match self {
RequirementModern::Dependency(..) => &default,
RequirementModern::LongDependency { common, .. }
| RequirementModern::GitDependency { common, .. }
| RequirementModern::FileDependency { common, .. }
| RequirementModern::PathDependency { common, .. }
| RequirementModern::UrlDependency { common, .. } => common,
};
let marker = if common.optional {
// invert the extras table from the modern format
// extra1 -> optional_dep1, optional_dep2, ...
// to the PEP 508 format
// optional_dep1; extra == "extra1" or extra == "extra2"
let dep_markers = extras
.iter()
.filter(|(_marker, dependencies)| dependencies.contains(&name.to_string()))
.map(|(marker, _dependencies)| {
MarkerTree::Expression(MarkerExpression {
l_value: MarkerValue::Extra,
operator: MarkerOperator::Equal,
r_value: QuotedString(marker.to_string()),
})
})
.collect();
// any of these extras activates the dependency -> or clause
let dep_markers = MarkerTree::Or(dep_markers);
let joined_marker = if let Some(user_markers) = &common.markers {
let user_markers = MarkerTree::from_str(user_markers)
.context("TODO: parse this in serde already")?;
// but the dependency needs to be activated and match the other markers
// -> and clause
MarkerTree::And(vec![user_markers, dep_markers])
} else {
dep_markers
};
Some(joined_marker)
} else {
None
};
if let Some(extras) = &common.extras {
debug_assert!(extras.iter().all(|extra| EXTRA_REGEX.is_match(extra)));
}
let version_or_url = match self {
RequirementModern::Dependency(version) => {
VersionOrUrl::VersionSpecifier(version.to_pep508_specifier())
}
RequirementModern::LongDependency { version, .. } => {
VersionOrUrl::VersionSpecifier(version.to_pep508_specifier())
}
RequirementModern::GitDependency {
git, branch, rev, ..
} => {
// TODO: Read https://peps.python.org/pep-0440/#direct-references properly
// set_scheme doesn't like us adding `git+` to https, therefore this hack
let mut url =
Url::parse(&format!("git+{}", git)).expect("TODO: Better url validation");
match (branch, rev) {
(Some(_branch), Some(_rev)) => {
bail!("You can set both branch and rev (for {})", name)
}
(Some(branch), None) => url.set_path(&format!("{}@{}", url.path(), branch)),
(None, Some(rev)) => url.set_path(&format!("{}@{}", url.path(), rev)),
(None, None) => {}
}
VersionOrUrl::Url(url)
}
RequirementModern::FileDependency { file, .. } => VersionOrUrl::Url(
Url::from_file_path(file)
.map_err(|()| format_err!("File must be absolute (for {})", name))?,
),
RequirementModern::PathDependency { path, .. } => VersionOrUrl::Url(
Url::from_directory_path(path)
.map_err(|()| format_err!("Path must be absolute (for {})", name))?,
),
RequirementModern::UrlDependency { url, .. } => VersionOrUrl::Url(url.clone()),
};
Ok(Requirement {
name: name.to_string(),
extras: common.extras.clone(),
version_or_url: Some(version_or_url),
marker,
})
}
}
#[cfg(test)]
mod test {
use crate::modern::{RequirementModern, VersionSpecifierModern};
use crate::Requirement;
use indoc::indoc;
use pep440_rs::VersionSpecifiers;
use serde::Deserialize;
use std::collections::{BTreeMap, HashMap};
use std::str::FromStr;
#[test]
fn test_basic() {
let deps: HashMap<String, RequirementModern> =
toml::from_str(r#"numpy = "==1.19""#).unwrap();
assert_eq!(
deps["numpy"],
RequirementModern::Dependency(VersionSpecifierModern::VersionSpecifier(
VersionSpecifiers::from_str("==1.19").unwrap()
))
);
assert_eq!(
deps["numpy"].to_pep508("numpy", &HashMap::new()).unwrap(),
Requirement::from_str("numpy== 1.19").unwrap()
);
}
#[test]
fn test_conversion() {
#[derive(Deserialize)]
struct PyprojectToml {
// BTreeMap to keep the order
#[serde(rename = "modern-dependencies")]
modern_dependencies: BTreeMap<String, RequirementModern>,
extras: HashMap<String, Vec<String>>,
}
let pyproject_toml = indoc! {r#"
[modern-dependencies]
pydantic = "1.10.5"
numpy = ">=1.24.2, <2.0.0"
pandas = { version = ">=1.5.3, <2.0.0" }
flask = { version = "2.2.3 ", extras = ["dotenv"], optional = true }
tqdm = { git = "https://github.com/tqdm/tqdm", rev = "0bb91857eca0d4aea08f66cf1c8949abe0cd6b7a" }
jax = { url = "https://storage.googleapis.com/jax-releases/cuda112/jaxlib-0.1.64+cuda112-cp39-none-manylinux2010_x86_64.whl" }
zstandard = { file = "/home/ferris/wheels/zstandard/zstandard-0.20.0.tar.gz" }
h5py = { path = "/home/ferris/wheels/h5py/" }
[extras]
internet = ["flask"]
"#
};
let deps: PyprojectToml = toml::from_str(pyproject_toml).unwrap();
let actual: Vec<String> = deps
.modern_dependencies
.iter()
.map(|(name, spec)| spec.to_pep508(name, &deps.extras).unwrap().to_string())
.collect();
let expected: Vec<String> = vec![
"flask[dotenv] ==2.2.3 ; extra == 'internet'".to_string(),
"h5py @ file:///home/ferris/wheels/h5py/".to_string(),
"jax @ https://storage.googleapis.com/jax-releases/cuda112/jaxlib-0.1.64+cuda112-cp39-none-manylinux2010_x86_64.whl".to_string(),
"numpy >=1.24.2, <2.0.0".to_string(),
"pandas >=1.5.3, <2.0.0".to_string(),
"pydantic ==1.10.5".to_string(),
"tqdm @ git+https://github.com/tqdm/tqdm@0bb91857eca0d4aea08f66cf1c8949abe0cd6b7a".to_string(),
"zstandard @ file:///home/ferris/wheels/zstandard/zstandard-0.20.0.tar.gz".to_string()
];
assert_eq!(actual, expected)
}
}

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@ -0,0 +1,97 @@
from collections import namedtuple
from unittest import mock
import pytest
from pep508_rs import Requirement, MarkerEnvironment, Pep508Error, VersionSpecifier
def test_pep508():
req = Requirement("numpy; python_version >= '3.7'")
assert req.name == "numpy"
env = MarkerEnvironment.current()
assert req.evaluate_markers(env, [])
req2 = Requirement("numpy; python_version < '3.7'")
assert not req2.evaluate_markers(env, [])
requests = Requirement(
'requests [security,tests] >=2.8.1, ==2.8.* ; python_version > "3.8"'
)
assert requests.name == "requests"
assert requests.extras == ["security", "tests"]
assert requests.version_or_url == [
VersionSpecifier(">=2.8.1"),
VersionSpecifier("==2.8.*"),
]
assert requests.marker == "python_version > '3.8'"
def test_marker():
env = MarkerEnvironment.current()
assert not Requirement("numpy; extra == 'science'").evaluate_markers(env, [])
assert Requirement("numpy; extra == 'science'").evaluate_markers(env, ["science"])
assert not Requirement(
"numpy; extra == 'science' and extra == 'arrays'"
).evaluate_markers(env, ["science"])
assert Requirement(
"numpy; extra == 'science' or extra == 'arrays'"
).evaluate_markers(env, ["science"])
class FakeVersionInfo(
namedtuple("FakeVersionInfo", ["major", "minor", "micro", "releaselevel", "serial"])
):
pass
@pytest.mark.parametrize(
("version", "version_str"),
[
(FakeVersionInfo(3, 10, 11, "final", 0), "3.10.11"),
(FakeVersionInfo(3, 10, 11, "rc", 1), "3.10.11rc1"),
],
)
def test_marker_values(version, version_str):
with mock.patch("sys.implementation.version", version):
env = MarkerEnvironment.current()
assert str(env.implementation_version.version) == version_str
def test_marker_values_current_platform():
MarkerEnvironment.current()
def test_errors():
with pytest.raises(
Pep508Error,
match="Expected an alphanumeric character starting the extra name, found 'ö'",
):
Requirement("numpy[ö]; python_version < '3.7'")
def test_warnings(caplog):
env = MarkerEnvironment.current()
assert not Requirement("numpy; '3.6' < '3.7'").evaluate_markers(env, [])
assert caplog.messages == [
"Comparing two quoted strings with each other doesn't make sense: "
"'3.6' < '3.7', evaluating to false"
]
caplog.clear()
assert not Requirement("numpy; 'a' < 'b'").evaluate_markers(env, [])
assert caplog.messages == [
"Comparing two quoted strings with each other doesn't make sense: "
"'a' < 'b', evaluating to false"
]
caplog.clear()
Requirement("numpy; python_version >= '3.9.'").evaluate_markers(env, [])
assert caplog.messages == [
"Expected PEP 440 version to compare with python_version, found '3.9.', "
"evaluating to false: Version `3.9.` doesn't match PEP 440 rules"
]
caplog.clear()
# pickleshare 0.7.5
Requirement("numpy; python_version in '2.6 2.7 3.2 3.3'").evaluate_markers(env, [])
assert caplog.messages == [
"Expected PEP 440 version to compare with python_version, "
"found '2.6 2.7 3.2 3.3', "
"evaluating to false: Version `2.6 2.7 3.2 3.3` doesn't match PEP 440 rules"
]